GIF, TIF, PNG and JPG pictures TGraphic read/write via GDI+

Implements TGraphic descendants able to load and
save GIF, TIF, PNG and JPG pictures, using the GDI+ library. Freeware
Opensource component, licensed under a MPL/GPL/LGPL tri-license. Works from
Delphi 3 to 2010.

By adding the SynGdiPlus unit to your uses clause,
these TGraphic descendants are registered in your
application to load GIF, TIF, PNG and JPG pictures. Use
TPicture.LoadFromFile() method with the right extension, and the
corresponding decoder will be used.

This unit implements its own GDI+ API functions, in a safe dynamic manner.
Even if you don't have GDI+ installed on the system (e.g. with Windows 2000),
the executable will launch - but all GIF, TIF, PNG and JPG pictures
loading and saving won't work. Please note that the GDI+ library is
available on all Windows Operating System since Windows XP (including Vista and
Seven).

Since all the decoding and encoding is done by the GDI+ library, this unit
adds much less code to your executable than the standard JPEG and PNG
units.

These classes handle the saving of the pictures. Most GDI+
implementation just allows you to load pictures. This unit handle all the
saving and conversion between formats. You can easily load an TIF, then save it
as a JPG file with a specified Compression Quality, via the SaveAs()
method.